Model valuation£417,0008 Busby Close
Local market context
21 Mathias Close, Penylan, Cardiff, CF23 9BE
Estimated value
£311,000
- Since the 2022 sale (£305,000)+2%
- Against CF23 9BE's recent median (£230,000)+35%
Newest record on this page: May 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.
Property type
End terrace
Bedrooms
3
Bathroom
1
Floor area
71 m²
764 sq ft
Energy rating
D
Score 63
Council tax
Band E
Tenure
Freehold
About this valuation
How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.
Our estimate
£311,000
- Against its 2022 sale (£305,000)+2%
- Against CF23 9BE's recent median (£230,000)+35%
Your note and figure are shown publicly on this page.
How the estimate is made
The estimate for 21 Mathias Close is modelled from its 71 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF23 9BE. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
What it's based on
Floor area
71 m² from the EPC lodged in May 2022
Sales of this home
2 sales recorded, the latest in 2022
Recent sales in CF23 9BE
5 sales, median £230,000 (2025–2019)
This page or the full report?
| Data | This page | Full report |
|---|---|---|
| Sales | Latest sale shown: May 2025 | Latest available records, read when you order |
| Valuation | Estimate from the last refresh | Analysed against comparable sales |
| Planning | None on this home | Full history, plus nearby schemes |
| Flood risk | Not shown | Included |
Sales history & valuation
Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.
Latest sale on 21 Mathias Close was the highest on Land Registry record across the postcode.
Sales timeline
15 September 2022Most recent
£305,000
+39.6%over 6 years12 July 2016
£218,500
Median price across the last 5 sales in CF23 9BE: £230,000 (2025–2019).
Nearby sales in CF23 9BE
1 Mathias Close, Penylan, Cardiff, CF23 9BE
Sold May 2025
£271,9506 Mathias Close, Penylan, Cardiff, CF23 9BE
Sold Jun 2023
£230,0004 Mathias Close, Penylan, Cardiff, CF23 9BE
Sold Feb 2023
£230,00015 Mathias Close, Penylan, Cardiff, CF23 9BE
Sold Oct 2021
£225,75022 Mathias Close, Penylan, Cardiff, CF23 9BE
Sold Nov 2019
£242,500
What this page doesn't show
Nothing is flagged from the data on this page, but these checks are only run in the report. The detail, evidence and what to ask about it are in the Risks Report.
- Flood risk from rivers, sea and surface waterIn report
- Subsidence and ground-stability signalsIn report
- Refusals, enforcement and big schemes nearbyIn report
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About 21 Mathias Close
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
21 Mathias Close is a three-bedroom end-of-terrace house in Penylan, Cardiff, Cardiff (CF23 9BE). It has a recorded floor area of 71 m² (around 764 sq ft), construction records dating it to 1991-1995 and council tax band E. Tenure is freehold. The latest certificate (May 2022) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since October 2008. Between certificates, window efficiency went from Average to Good and main heating went from Average to Good; while roof efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 87), a 2-band jump. The home occupies a corner plot.
At 71 m² it's 24.6% larger than the typical home in the postcode (57 m² median across 17 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 71% of similar EPCs). Across 2016–2022, sale prices on this property compounded at 5.5% per year. On a £-per-square-foot basis, the last sale (£399/sq ft) was about 71.8% above the typical sold price in the postcode. Most recent transfer: September 2022 at £305,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.
Inside
- Bedrooms3
- Bathrooms1
Outside
- ParkingOff road
- Corner plotYes
Building
- TenureFreehold
Before you decide
Everything you need to know about 21 Mathias Close
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The data behind every report
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Recommended upgrades on file would lift this property by multiple EPC bands.
Current Certificate(1 of 2)
May 2022
EPC Rating
A
B
C
D
D63
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Good
CO2 Emissions
3.3 t/year
Occupancy
Owner Occupied
Certificate validity
Valid until 8 May 2032
Property Improvements
Changes detected from historical EPC data
May 2022from Oct 2008
Windows
AverageGood
Window efficiency improved
Planning history
Applications and permits filed against 21 Mathias Close, Penylan, Cardiff, CF23 9BE, sourced from the PlanIt planning register.
21 Mathias Close has no planning applications on record.
2
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Versus other Mathias Close homes
Four headline reads against 17 similar houses on this street, drawn from the latest EPC and Land Registry data.
21 Mathias Close is notably below the street on co₂ emissions.
Price per m²
£4,296
Street avg £3,162
Floor Area
71 m²
Street avg 58 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
3.3 t/year
Street avg 2.2 t/year
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Cardiff district page.
Crime
169/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Colchester Avenue — bus stop.
Nearest stops
- Colchester AvenueBus stop56m
- Baron's Court RoadBus stop81m
- Earl`s Court RoadBus stop171m
- Hampton Court RdBus stop198m
Most reported crime locally
- Violence & Sexual Offences995 reports33%
- Anti-social Behaviour345 reports11%
- Public Order344 reports11%
- Shoplifting340 reports11%
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Get a survey for this property
Level 2 HomeBuyer Report
Late 20th centuryEnd-Terrace HouseFreeholdEPC D
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Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£337k
1 Kingwood Close, Penylan
CF23 9HE
3 bed1 bath
£350k
1 Firstbrook Close
CF23 9ER
3 bed2 bath
£417k
1 Hugon Close
CF23 9BY
3 bed1 bath
£198k
1 Bryn Y Nant, Llanedeyrn
CF23 9NZ
3 bed
£442k
1 Earl S Court Road, Penylan
CF23 9DD
4 bed
£311k
1 Ffordd Nowell, Penylan
CF23 9FA
£339k
1 Doe Close, Penylan
CF23 9HJ
£280k
1 Grafton Close, Penylan
CF23 9JA
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Where every figure above comes from, how current it is and what it can't tell you.
- How the estimate is made
- The estimate for 21 Mathias Close is modelled from its 71 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF23 9BE. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
- Where sold prices come from
- Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 2 sales are recorded for 21 Mathias Close. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
- Reading the EPC
- Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 21 Mathias Close was lodged in May 2022 at band D and is valid until May 2032. 2 certificates are on record, which shows how the home has changed.
- Planning records
- Planning applications are collected from local authority registers through PlanIt. None is matched to 21 Mathias Close. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
- Area figures
- Crime is police-recorded street-level data over the last 18 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF23 9BE.
- Council tax band
- 21 Mathias Close is in council tax band E. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
Common questions
The questions buyers, sellers and homeowners most often ask about 21 Mathias Close, Penylan, Cardiff, CF23 9BE. Each answer is also embedded as structured data for search engines.
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Keep exploring
- Every home in CF23 9BESold prices, values and energy ratings for the postcode
- CF 23 property marketPrices, postcodes, schools and transport across the district
- 21 Mathias Close, Penylan, Cardiff valuationHow the estimate is built and what moves it
- UK house price mapExplore prices by district, year by year
- Report on another addressLook up any home in England and Wales